Product Summary

The ISO122U is a precision isolation amplifier incorporating a novel duty cycle modulation-demodulation technique. The signal

is transmitted digitally across a 2pF differential capacitive barrier. With digital modulation the barrier characteristics do not

affect signal integrity, resulting in excellent reliability and good high frequency transient immunity across the barrier. Both

barrier capacitors are imbedded in the plastic body of the package.

The ISO122U is easy to use. No external components are required for operation. The key specifications are 0.020% max

nonlinearity, 50kHz signal bandwidth,and 200μV/°C VOS drift. A power supply range of ±4.5V to ±18V and quiescent

currents of ±5.0mA onVS1 and  ±5.5mA on VS2 make these amplifiers ideal for a wide range of applications.

The ISO122U is available in 16-pin plastic DIP and 28-lead plastic surface mount packages.

Parametrics

ISO122U Parametrics:

Packaging
Tube
Amplifier Type Isolation
Number of Circuits 1
Output Type -
Slew Rate 2 V/μs
Gain Bandwidth Product -
-3db Bandwidth 50kHz
Current - Input Bias -
Voltage - Input Offset 20mV
Current - Supply 5mA
Current - Output / Channel 15mA
Voltage - Supply, Single/Dual (±) ±4.5 V ~ 18 V
Operating Temperature -25°C ~ 85°C
Mounting Type Surface Mount
Package/Case 28-SOIC (0.295", 7.50mm Width) 8 Leads
Supplier Device Package 8-SOIC
Dynamic Catalog Isolation


Features

ISO122U Features:


  • 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN
  • RATED 1500Vrms
  • HIGH IMR: 140dB at 60Hz
  • BIPOLAR OPERATION: VO = ±10V
  • 16-PIN PLASTIC DIP AND 28-LEAD SOIC
  • EASE OF USE: Fixed Unity Gain Configuration
  • 0.020% max NONLINEARITY
  • ±4.5V to ±18V SUPPLY RANGE


Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
ISO122U
ISO122U

Texas Instruments

Isolation Amplifiers Precision Low Cost Isolation Amp

Data Sheet

0-1: $14.23
1-10: $13.39
10-25: $12.55
25-50: $12.31
ISO122U/1K
ISO122U/1K

Texas Instruments

Isolation Amplifiers Precision Low Cost Isolation Amp

Data Sheet

0-786: $9.28
786-1000: $9.11
ISO122UE4
ISO122UE4

Texas Instruments

Isolation Amplifiers Precision Low Cost Isolation Amp

Data Sheet

0-1: $14.23
1-10: $13.39
10-25: $12.55
25-50: $12.31
ISO122U/1KE4
ISO122U/1KE4

Texas Instruments

Isolation Amplifiers Precision Low Cost Isolation Amp

Data Sheet

0-786: $9.28
786-1000: $9.11